CS203030B2 - Insecticide and acaricide - Google Patents

Abstract

The two compounds 0,0-diethyl- (1-phenyl-1,2,4-triazol-3-yl) thionophosphate (Triazophos) and (2-sec-butyl-4,6- dinitrophenyl)-3,3-dimethylacrylate (Binapacryl) are both well known insecticides and fungicides. This invention relates to the hitherto unknown synergistic combination of these two compounds in the form of a pesticidal agent and preparation. The invention also relates to a method of treatment of a particular area, an animal or a plant using such an agent or preparation, to combat insects, acarids and fungi.

Description

It has now been found that the combination of Triezophos and Binapacryl with synergistic activity against mites and their eggs, inter alia against strains that are resistant to esi phosphoric acid. The ratio of Triazophos: Binapacryl in the smmsi can also vary from 1:10 to 10: 1 and is preferably 1: 1 to 10: 1.

The active compound mixtures according to the invention can be used in the form of customary formulations, such as emulsion concentrates, ULV solutions, dispersions, powdered powders, dusts or granules. The total content of active substances in the formulations on the market is then between 10 and 90% by weight. In addition, these formulations contain conventional adhesives, lubricants, dispersants, fillers and carriers. For practical use, however, also those prepared directly from the individual active ingredients in corresponding powders in the tank, the so-called tankmix, are also suitable.

Emulsible concentrates are obtained by dissolving the active ingredients in suitable organic solvents by dissolving the active ingredients in suitable organic solvents. Possible solvents are, for example: toluene, xylenes, chlorobenzenes and other higher-boiling aromatic compounds, furthermore gasolines or paraffinic oils, ocohexanones, dimethylformamide, dimeethlsulfoxide, tetralydrofuran, dioxane, diacetone alcohol, ethyl acetate, isephorone.

In the case of ULV (Ultr-oow-Volume) formulations, preferably higher boiling solvents are used to keep the evaporation degree low when spraying, for example higher boiling paraffins, ketones or esters as well as possibly oils.

Suitable carriers for solid compositions are, in particular, mineral substances? for example, silicas and silicates such as silica, kaolins, clays or talc; chalk or silica chalk, but also these mineral auxiliary substances, such as stearates, alkyl aryl or alkylarylsulfonates, lignin sulfonates and the like. dispersants and adhesives, as well as grinding aids of various types for the preparation of compositions with specific application properties.

Prior to use, the emulsion concentrates, amine powders or dispersions are further diluted with a suitable diluent - usually water - and thus converted to a concentration suitable for practical application. Te changes as usual according to the kind of use? and climatic conditions, in particular depending on temperature and humidity, but are usually, for example, in the case of powdered powders, from 0.005 to 1.0% by weight of the total active ingredient content.

The insecticidal and acaricidal compositions according to the invention have an action against harmful insects. against mites and their eggs, and can be used successfully in far less time than with pest control agents containing f - only one of the two active ingredients alone.

In addition, the compositions according to the invention are also effective against strains which are resistant to phosphoric acid esters.

Examples illustrating buffering agents:

1. Emulsion α-Sstrate (Triazcph.os: Binapacryl - 10: 1 w / w ratio)

Bimapecryl 4.0 'l · copUos40.0 Busted dsdecylbenzene sulphonic acid salt 5.0 o * ethoxylated castor oil (with an average of 40 ethylene oxide units per mole) 7.4 tributyltin (s) glyglyasine (with an average of 50 ethylene oxide units per mole). in xylene42.0

100.0 wt.

2. Ernze concentrate (weight ratio Triazophos: Binapacryl = 1:10)

Binapacry1 Triazophos 40.0 4.0

dodecylbenzenesulfonic acid calcium salt 3,0 oxethylated castor oil (with an average of 36 ethylene oxide units per οο '^^) 2,0 xylene5y, 0

100.0% hmoot ·

Examples illustrating biological activity:

Emmlzní ko ^ _J ΊoenOráty active substances binapacryl triazophos and diluted with water such that a concentration of the active compounds mentioned in the following examples. These active agents are then sprayed evenly onto bean plants (Phaseolus vulgaris) heavily occupied by the complete population of the pest in question, up to the point where the drops begin to drip. After the spray layer has dried, the plants are placed in a greenhouse. The evaluation is carried out 8 days after the treatment under a microscope.

Example 1 Pest: Common Whirlwind (Tetranychus urticae), normally sensitive strain weight ratio Triazophos: Bioapacryl - · 1:10

active substance Ьто'по ^ п! % active ingredient acaricidium effect in% mor- in the tality spray suspension л ?. ^4. ' aiobhos + · ocparryl Triazi .. · · · · cos Bioapou · · · 0.000075 + 0.00075 92 0.000075 50 0.00075 10

He said ad

Pests: spider mite (Tetranychus urticae), strain Baerňse ireзisteoitos against esterO phosphoric acid)

^ * 0'00 Rotation ratio Trio šzophos: Bioapacyl = 2: 1 účioo.á lád · Ьто'по'Ьо! % of active substance 'Initiation · dumbbells in% in the spray suspension of mr1-aai’ty Triaяtphts ♦ Binapacryl Triaztphc * 0.0063 ... Ю0 + 0.00 z! 0.0063 0 0'0 7 5 ♦ Binapacryl Triazophos Bioapaeryl 0.0031 + 0.0016 50 0.0031 0 0.001 *. 25

• Q3O3O

Example 3 pest: spider mite (Tetranychus urticae), Baardse strain (resistant to phosphoric esters and selective) weight ratio Triazophos: Binapacryl = 10: 1 active ingredient weight% active ingredient in spray suspension ovicidal effect in% mortality

Triazophos 0.0125 * Binapacryl * 0.00125 80 Triazophos 0.0125 30 Binapacryl 0.00125 30 Triazophos 0,0063 + Binapacryl + 0.00063 50 Triazophos 0,0063 0 Binapacryl 0.00063 10 Example 4

Test insects: Greenhouse whitefly (Trialeurodes veoorariorum) on beans (Phaseolus vulgaris)

The infected plants are sprayed vigorously with the active compound suspensions at the concentrations indicated in the following table (the concentration is given in percent by weight of the active substance), then placed in a greenhouse and checked after 8 days for control.

The results are shown in the following table:

Table

active substance by weight of active puppet in the spray suspension insecticidal effect after 8 days in% mortality the compound of formula I 0.015 25 (Triazophos) 0.003 5 the compound of formula II 0.03 50 (Binapacryl) 0.015 30 the compound of formula I 0.015 + »· 99 the compound of formula II 0.015 the compound of formula I • 0.003 + + 96 the compound of formula II 0.03

Claims (2)

Insecticidal and acaricidal composition, characterized in that it contains, as active ingredient, O, O-diethyl- (1-phenyl-1,2,4-triazol-3-yl) thionophosphate (I) in combination with (2-sec-butyl- 4,6-dinitoofanyl) _зЗ> Зdčm _цιe yrlakгyláeem · t} (II) wherein hmoonnotní ratio of components I and II is from 1:10 to 10: first 2. The composition of clause ^1,: ^ ^£ ^ ^R ^ a ^ u ^ jjLcí said hmoonnosní ratio of components I and II is from 1: 1 to 10: 1st